Western Digital WDG2T10000N My Book Premium Edition II 1 TB USB 2.0/Firewire RAID System Extraordinary capacity - With one terabyte (1,000 GB) of storage in this elegant, small footprint design For extra data protection, dedicate half the capacity for mirroring and automatically back up data every time you save it. The lighting-fast combination of FireWire 400/800 and RAID striping yields the speed you need for fast, smooth video editing You're up and running in a few simple steps. RAID configuration is easy with WD's intuitive RAID Wizard software Easy access allows you to open the case and replace a drive. No need to send the entire system in for service